After a comprehensive application form, successful candidates are invited to interview. For this role there was a statistical assessment (which was done through excel) and an interview with three people. There is also a pre-interview task I was asked to write a policy brief for the director as if she were going for an interview with the economist. All three factors: the excel/data analysis, interview, and policy brief are considered when choosing an ideal candidate. Despite being unsuccessful I would apply for WaterAid again, they were kind enough to offer me comprehensive feedback on my application process. They also offer to reimburse travel expenses, which is a nice touch when a recent graduate. Everyone was kind and friendly.